Having some troubles getting further in this system I'm trying to solve. The notebook's at http://www.gabrielwyner.com/fluids5.nb
I guess the most current problem involves mathematica complaining about DSolve[h'[t] = f[h[t],h]] (with correct syntax, that is). It doesnt like solving a function with h[t] and h in it..
Attachment: fluids5.nb, URL: http://www.gabrielwyner.com/fluids5.pdf,